The S-1 sampling plug-in head provides a single GR-874 50 Ω input with a 350 ps rise-time.
The S-1 can be used with the 7000 series of sampling plug-ins, as well as the 3S series of sampling units.
|Rise time||350 ps|
|Input amplitude||−1 V to +1 V with ≤1 Vp-p signals|
|Maximum input||±5 VDC or sine of 10 Vp-p up to 10 MHz|
|Input impedance||50 Ω (GR-874)|
|Noise||< 2 mV|
|Features||trigger pickoff for internal triggering|
The S-1 uses a two-diode sampling gate which has relatively high "kick-out" (leakage of the strobe signal out of the input).
The manual cautions,
Operating the sampling head without the input connector terminated by a 50 Ω resistor or coaxial cable will cause a vertical shift of the zero signal baseline by a few millivolts. This is caused by the strobe kickout signal being reflected from the open input connector, and orriving bock at the sampling bridge while the bridge is conducting.